The proposed flotation of Manchester United on the New York Stock Exchange has re-ignited the debate on the Glazers' ownership of the Reds.

Fans have pointed to the owners as the reason why United have failed to land recent targets such as Karim Benzema, Wesley Sneijder and Samir Nasri.

But just how much have the Glazers spent on transfers since their takeover in 2005? And how does it compare to the money coming in from players leaving? Here is a run-down from each year since the takeover.